<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    package org.apache.commons.beanutils;<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    /**<a name="line.19"></a>
<FONT color="green">020</FONT>     * &lt;p&gt;DynaClass which implements the &lt;code&gt;MutableDynaClass&lt;/code&gt; interface.&lt;/p&gt;<a name="line.20"></a>
<FONT color="green">021</FONT>     *<a name="line.21"></a>
<FONT color="green">022</FONT>     * &lt;p&gt;A &lt;code&gt;MutableDynaClass&lt;/code&gt; is a specialized extension to &lt;code&gt;DynaClass&lt;/code&gt;<a name="line.22"></a>
<FONT color="green">023</FONT>     *    that allows properties to be added or removed dynamically.&lt;/p&gt;<a name="line.23"></a>
<FONT color="green">024</FONT>     *<a name="line.24"></a>
<FONT color="green">025</FONT>     * &lt;p&gt;This implementation has one slightly unusual default behaviour - calling<a name="line.25"></a>
<FONT color="green">026</FONT>     *    the &lt;code&gt;getDynaProperty(name)&lt;/code&gt; method for a property which doesn't<a name="line.26"></a>
<FONT color="green">027</FONT>     *    exist returns a &lt;code&gt;DynaProperty&lt;/code&gt; rather than &lt;code&gt;null&lt;/code&gt;. The<a name="line.27"></a>
<FONT color="green">028</FONT>     *    reason for this is that &lt;code&gt;BeanUtils&lt;/code&gt; calls this method to check if<a name="line.28"></a>
<FONT color="green">029</FONT>     *    a property exists before trying to set the value. This would defeat the object<a name="line.29"></a>
<FONT color="green">030</FONT>     *    of the &lt;code&gt;LazyDynaBean&lt;/code&gt; which automatically adds missing properties<a name="line.30"></a>
<FONT color="green">031</FONT>     *    when any of its &lt;code&gt;set()&lt;/code&gt; methods are called. For this reason the<a name="line.31"></a>
<FONT color="green">032</FONT>     *    &lt;code&gt;isDynaProperty(name)&lt;/code&gt; method has been added to this implementation<a name="line.32"></a>
<FONT color="green">033</FONT>     *    in order to determine if a property actually exists. If the more &lt;i&gt;normal&lt;/i&gt;<a name="line.33"></a>
<FONT color="green">034</FONT>     *    behaviour of returning &lt;code&gt;null&lt;/code&gt; is required, then this can be achieved<a name="line.34"></a>
<FONT color="green">035</FONT>     *    by calling the &lt;code&gt;setReturnNull(true)&lt;/code&gt;.&lt;/p&gt;<a name="line.35"></a>
<FONT color="green">036</FONT>     *<a name="line.36"></a>
<FONT color="green">037</FONT>     * &lt;p&gt;The &lt;code&gt;add(name, type, readable, writable)&lt;/code&gt; method is not implemented<a name="line.37"></a>
<FONT color="green">038</FONT>     *    and always throws an &lt;code&gt;UnsupportedOperationException&lt;/code&gt;. I believe<a name="line.38"></a>
<FONT color="green">039</FONT>     *    this attributes need to be added to the &lt;code&gt;DynaProperty&lt;/code&gt; class<a name="line.39"></a>
<FONT color="green">040</FONT>     *    in order to control read/write facilities.&lt;/p&gt;<a name="line.40"></a>
<FONT color="green">041</FONT>     *<a name="line.41"></a>
<FONT color="green">042</FONT>     * @see LazyDynaBean<a name="line.42"></a>
<FONT color="green">043</FONT>     * @author Niall Pemberton<a name="line.43"></a>
<FONT color="green">044</FONT>     */<a name="line.44"></a>
<FONT color="green">045</FONT>    public class LazyDynaClass extends BasicDynaClass implements MutableDynaClass  {<a name="line.45"></a>
<FONT color="green">046</FONT>    <a name="line.46"></a>
<FONT color="green">047</FONT>        /**<a name="line.47"></a>
<FONT color="green">048</FONT>         * Controls whether changes to this DynaClass's properties are allowed.<a name="line.48"></a>
<FONT color="green">049</FONT>         */<a name="line.49"></a>
<FONT color="green">050</FONT>        protected boolean restricted;<a name="line.50"></a>
<FONT color="green">051</FONT>    <a name="line.51"></a>
<FONT color="green">052</FONT>        /**<a name="line.52"></a>
<FONT color="green">053</FONT>         * &lt;p&gt;Controls whether the &lt;code&gt;getDynaProperty()&lt;/code&gt; method returns<a name="line.53"></a>
<FONT color="green">054</FONT>         * null if a property doesn't exist - or creates a new one.&lt;/p&gt;<a name="line.54"></a>
<FONT color="green">055</FONT>         *<a name="line.55"></a>
<FONT color="green">056</FONT>         * &lt;p&gt;Default is &lt;code&gt;false&lt;/code&gt;.<a name="line.56"></a>
<FONT color="green">057</FONT>         */<a name="line.57"></a>
<FONT color="green">058</FONT>        protected boolean returnNull = false;<a name="line.58"></a>
<FONT color="green">059</FONT>    <a name="line.59"></a>
<FONT color="green">060</FONT>        /**<a name="line.60"></a>
<FONT color="green">061</FONT>         * Construct a new LazyDynaClass with default parameters.<a name="line.61"></a>
<FONT color="green">062</FONT>         */<a name="line.62"></a>
<FONT color="green">063</FONT>        public LazyDynaClass() {<a name="line.63"></a>
<FONT color="green">064</FONT>            this(null, (DynaProperty[])null);<a name="line.64"></a>
<FONT color="green">065</FONT>        }<a name="line.65"></a>
<FONT color="green">066</FONT>    <a name="line.66"></a>
<FONT color="green">067</FONT>        /**<a name="line.67"></a>
<FONT color="green">068</FONT>         * Construct a new LazyDynaClass with the specified name.<a name="line.68"></a>
<FONT color="green">069</FONT>         *<a name="line.69"></a>
<FONT color="green">070</FONT>         * @param name Name of this DynaBean class<a name="line.70"></a>
<FONT color="green">071</FONT>         */<a name="line.71"></a>
<FONT color="green">072</FONT>        public LazyDynaClass(String name) {<a name="line.72"></a>
<FONT color="green">073</FONT>            this(name, (DynaProperty[])null);<a name="line.73"></a>
<FONT color="green">074</FONT>        }<a name="line.74"></a>
<FONT color="green">075</FONT>    <a name="line.75"></a>
<FONT color="green">076</FONT>        /**<a name="line.76"></a>
<FONT color="green">077</FONT>         * Construct a new LazyDynaClass with the specified name and DynaBean class.<a name="line.77"></a>
<FONT color="green">078</FONT>         *<a name="line.78"></a>
<FONT color="green">079</FONT>         * @param name Name of this DynaBean class<a name="line.79"></a>
<FONT color="green">080</FONT>         * @param dynaBeanClass The implementation class for new instances<a name="line.80"></a>
<FONT color="green">081</FONT>         */<a name="line.81"></a>
<FONT color="green">082</FONT>        public LazyDynaClass(String name, Class dynaBeanClass) {<a name="line.82"></a>
<FONT color="green">083</FONT>            this(name, dynaBeanClass, null);<a name="line.83"></a>
<FONT color="green">084</FONT>        }<a name="line.84"></a>
<FONT color="green">085</FONT>    <a name="line.85"></a>
<FONT color="green">086</FONT>        /**<a name="line.86"></a>
<FONT color="green">087</FONT>         * Construct a new LazyDynaClass with the specified name and properties.<a name="line.87"></a>
<FONT color="green">088</FONT>         *<a name="line.88"></a>
<FONT color="green">089</FONT>         * @param name Name of this DynaBean class<a name="line.89"></a>
<FONT color="green">090</FONT>         * @param properties Property descriptors for the supported properties<a name="line.90"></a>
<FONT color="green">091</FONT>         */<a name="line.91"></a>
<FONT color="green">092</FONT>        public LazyDynaClass(String name, DynaProperty[] properties) {<a name="line.92"></a>
<FONT color="green">093</FONT>            this(name, LazyDynaBean.class, properties);<a name="line.93"></a>
<FONT color="green">094</FONT>        }<a name="line.94"></a>
<FONT color="green">095</FONT>    <a name="line.95"></a>
<FONT color="green">096</FONT>        /**<a name="line.96"></a>
<FONT color="green">097</FONT>         * Construct a new LazyDynaClass with the specified name, DynaBean class and properties.<a name="line.97"></a>
<FONT color="green">098</FONT>         *<a name="line.98"></a>
<FONT color="green">099</FONT>         * @param name Name of this DynaBean class<a name="line.99"></a>
<FONT color="green">100</FONT>         * @param dynaBeanClass The implementation class for new intances<a name="line.100"></a>
<FONT color="green">101</FONT>         * @param properties Property descriptors for the supported properties<a name="line.101"></a>
<FONT color="green">102</FONT>         */<a name="line.102"></a>
<FONT color="green">103</FONT>        public LazyDynaClass(String name, Class dynaBeanClass, DynaProperty properties[]) {<a name="line.103"></a>
<FONT color="green">104</FONT>            super(name, dynaBeanClass, properties);<a name="line.104"></a>
<FONT color="green">105</FONT>        }<a name="line.105"></a>
<FONT color="green">106</FONT>    <a name="line.106"></a>
<FONT color="green">107</FONT>        /**<a name="line.107"></a>
<FONT color="green">108</FONT>         * &lt;p&gt;Is this DynaClass currently restricted.&lt;/p&gt;<a name="line.108"></a>
<FONT color="green">109</FONT>         * &lt;p&gt;If restricted, no changes to the existing registration of<a name="line.109"></a>
<FONT color="green">110</FONT>         *  property names, data types, readability, or writeability are allowed.&lt;/p&gt;<a name="line.110"></a>
<FONT color="green">111</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if this {@link MutableDynaClass} cannot be changed<a name="line.111"></a>
<FONT color="green">112</FONT>         * otherwise &lt;code&gt;false&lt;/code&gt;<a name="line.112"></a>
<FONT color="green">113</FONT>         */<a name="line.113"></a>
<FONT color="green">114</FONT>        public boolean isRestricted() {<a name="line.114"></a>
<FONT color="green">115</FONT>            return restricted;<a name="line.115"></a>
<FONT color="green">116</FONT>        }<a name="line.116"></a>
<FONT color="green">117</FONT>    <a name="line.117"></a>
<FONT color="green">118</FONT>        /**<a name="line.118"></a>
<FONT color="green">119</FONT>         * &lt;p&gt;Set whether this DynaClass is currently restricted.&lt;/p&gt;<a name="line.119"></a>
<FONT color="green">120</FONT>         * &lt;p&gt;If restricted, no changes to the existing registration of<a name="line.120"></a>
<FONT color="green">121</FONT>         *  property names, data types, readability, or writeability are allowed.&lt;/p&gt;<a name="line.121"></a>
<FONT color="green">122</FONT>         * @param restricted &lt;code&gt;true&lt;/code&gt; if this {@link MutableDynaClass} cannot<a name="line.122"></a>
<FONT color="green">123</FONT>         * be changed otherwise &lt;code&gt;false&lt;/code&gt;<a name="line.123"></a>
<FONT color="green">124</FONT>         */<a name="line.124"></a>
<FONT color="green">125</FONT>        public void setRestricted(boolean restricted) {<a name="line.125"></a>
<FONT color="green">126</FONT>            this.restricted = restricted;<a name="line.126"></a>
<FONT color="green">127</FONT>        }<a name="line.127"></a>
<FONT color="green">128</FONT>    <a name="line.128"></a>
<FONT color="green">129</FONT>        /**<a name="line.129"></a>
<FONT color="green">130</FONT>         * Should this DynaClass return a &lt;code&gt;null&lt;/code&gt; from<a name="line.130"></a>
<FONT color="green">131</FONT>         * the &lt;code&gt;getDynaProperty(name)&lt;/code&gt; method if the property<a name="line.131"></a>
<FONT color="green">132</FONT>         * doesn't exist.<a name="line.132"></a>
<FONT color="green">133</FONT>         *<a name="line.133"></a>
<FONT color="green">134</FONT>         * @return &lt;code&gt;true&lt;code&gt; if a &lt;code&gt;null&lt;/code&gt; {@link DynaProperty}<a name="line.134"></a>
<FONT color="green">135</FONT>         * should be returned if the property doesn't exist, otherwise<a name="line.135"></a>
<FONT color="green">136</FONT>         * &lt;code&gt;false&lt;/code&gt; if a new {@link DynaProperty} should be created.<a name="line.136"></a>
<FONT color="green">137</FONT>         */<a name="line.137"></a>
<FONT color="green">138</FONT>        public boolean isReturnNull() {<a name="line.138"></a>
<FONT color="green">139</FONT>            return returnNull;<a name="line.139"></a>
<FONT color="green">140</FONT>        }<a name="line.140"></a>
<FONT color="green">141</FONT>    <a name="line.141"></a>
<FONT color="green">142</FONT>        /**<a name="line.142"></a>
<FONT color="green">143</FONT>         * Set whether this DynaClass should return a &lt;code&gt;null&lt;/code&gt; from<a name="line.143"></a>
<FONT color="green">144</FONT>         * the &lt;code&gt;getDynaProperty(name)&lt;/code&gt; method if the property<a name="line.144"></a>
<FONT color="green">145</FONT>         * doesn't exist.<a name="line.145"></a>
<FONT color="green">146</FONT>         * @param returnNull &lt;code&gt;true&lt;code&gt; if a &lt;code&gt;null&lt;/code&gt; {@link DynaProperty}<a name="line.146"></a>
<FONT color="green">147</FONT>         * should be returned if the property doesn't exist, otherwise<a name="line.147"></a>
<FONT color="green">148</FONT>         * &lt;code&gt;false&lt;/code&gt; if a new {@link DynaProperty} should be created.<a name="line.148"></a>
<FONT color="green">149</FONT>         */<a name="line.149"></a>
<FONT color="green">150</FONT>        public void setReturnNull(boolean returnNull) {<a name="line.150"></a>
<FONT color="green">151</FONT>            this.returnNull = returnNull;<a name="line.151"></a>
<FONT color="green">152</FONT>        }<a name="line.152"></a>
<FONT color="green">153</FONT>    <a name="line.153"></a>
<FONT color="green">154</FONT>        /**<a name="line.154"></a>
<FONT color="green">155</FONT>         * Add a new dynamic property with no restrictions on data type,<a name="line.155"></a>
<FONT color="green">156</FONT>         * readability, or writeability.<a name="line.156"></a>
<FONT color="green">157</FONT>         *<a name="line.157"></a>
<FONT color="green">158</FONT>         * @param name Name of the new dynamic property<a name="line.158"></a>
<FONT color="green">159</FONT>         *<a name="line.159"></a>
<FONT color="green">160</FONT>         * @exception IllegalArgumentException if name is null<a name="line.160"></a>
<FONT color="green">161</FONT>         * @exception IllegalStateException if this DynaClass is currently<a name="line.161"></a>
<FONT color="green">162</FONT>         *  restricted, so no new properties can be added<a name="line.162"></a>
<FONT color="green">163</FONT>         */<a name="line.163"></a>
<FONT color="green">164</FONT>        public void add(String name) {<a name="line.164"></a>
<FONT color="green">165</FONT>            add(new DynaProperty(name));<a name="line.165"></a>
<FONT color="green">166</FONT>        }<a name="line.166"></a>
<FONT color="green">167</FONT>    <a name="line.167"></a>
<FONT color="green">168</FONT>        /**<a name="line.168"></a>
<FONT color="green">169</FONT>         * Add a new dynamic property with the specified data type, but with<a name="line.169"></a>
<FONT color="green">170</FONT>         * no restrictions on readability or writeability.<a name="line.170"></a>
<FONT color="green">171</FONT>         *<a name="line.171"></a>
<FONT color="green">172</FONT>         * @param name Name of the new dynamic property<a name="line.172"></a>
<FONT color="green">173</FONT>         * @param type Data type of the new dynamic property (null for no<a name="line.173"></a>
<FONT color="green">174</FONT>         *  restrictions)<a name="line.174"></a>
<FONT color="green">175</FONT>         *<a name="line.175"></a>
<FONT color="green">176</FONT>         * @exception IllegalArgumentException if name is null<a name="line.176"></a>
<FONT color="green">177</FONT>         * @exception IllegalStateException if this DynaClass is currently<a name="line.177"></a>
<FONT color="green">178</FONT>         *  restricted, so no new properties can be added<a name="line.178"></a>
<FONT color="green">179</FONT>         */<a name="line.179"></a>
<FONT color="green">180</FONT>        public void add(String name, Class type) {<a name="line.180"></a>
<FONT color="green">181</FONT>            if (type == null) {<a name="line.181"></a>
<FONT color="green">182</FONT>                add(name);<a name="line.182"></a>
<FONT color="green">183</FONT>            } else {<a name="line.183"></a>
<FONT color="green">184</FONT>                add(new DynaProperty(name, type));<a name="line.184"></a>
<FONT color="green">185</FONT>            }<a name="line.185"></a>
<FONT color="green">186</FONT>        }<a name="line.186"></a>
<FONT color="green">187</FONT>    <a name="line.187"></a>
<FONT color="green">188</FONT>        /**<a name="line.188"></a>
<FONT color="green">189</FONT>         * &lt;p&gt;Add a new dynamic property with the specified data type, readability,<a name="line.189"></a>
<FONT color="green">190</FONT>         * and writeability.&lt;/p&gt;<a name="line.190"></a>
<FONT color="green">191</FONT>         *<a name="line.191"></a>
<FONT color="green">192</FONT>         * &lt;p&gt;&lt;strong&gt;N.B.&lt;/strong&gt;Support for readable/writeable properties has not been implemented<a name="line.192"></a>
<FONT color="green">193</FONT>         *    and this method always throws a &lt;code&gt;UnsupportedOperationException&lt;/code&gt;.&lt;/p&gt;<a name="line.193"></a>
<FONT color="green">194</FONT>         *<a name="line.194"></a>
<FONT color="green">195</FONT>         * &lt;p&gt;I'm not sure the intention of the original authors for this method, but it seems to<a name="line.195"></a>
<FONT color="green">196</FONT>         *    me that readable/writable should be attributes of the &lt;code&gt;DynaProperty&lt;/code&gt; class<a name="line.196"></a>
<FONT color="green">197</FONT>         *    (which they are not) and is the reason this method has not been implemented.&lt;/p&gt;<a name="line.197"></a>
<FONT color="green">198</FONT>         *<a name="line.198"></a>
<FONT color="green">199</FONT>         * @param name Name of the new dynamic property<a name="line.199"></a>
<FONT color="green">200</FONT>         * @param type Data type of the new dynamic property (null for no<a name="line.200"></a>
<FONT color="green">201</FONT>         *  restrictions)<a name="line.201"></a>
<FONT color="green">202</FONT>         * @param readable Set to &lt;code&gt;true&lt;/code&gt; if this property value<a name="line.202"></a>
<FONT color="green">203</FONT>         *  should be readable<a name="line.203"></a>
<FONT color="green">204</FONT>         * @param writeable Set to &lt;code&gt;true&lt;/code&gt; if this property value<a name="line.204"></a>
<FONT color="green">205</FONT>         *  should be writeable<a name="line.205"></a>
<FONT color="green">206</FONT>         *<a name="line.206"></a>
<FONT color="green">207</FONT>         * @exception UnsupportedOperationException anytime this method is called<a name="line.207"></a>
<FONT color="green">208</FONT>         */<a name="line.208"></a>
<FONT color="green">209</FONT>        public void add(String name, Class type, boolean readable, boolean writeable) {<a name="line.209"></a>
<FONT color="green">210</FONT>            throw new java.lang.UnsupportedOperationException("readable/writable properties not supported");<a name="line.210"></a>
<FONT color="green">211</FONT>        }<a name="line.211"></a>
<FONT color="green">212</FONT>    <a name="line.212"></a>
<FONT color="green">213</FONT>        /**<a name="line.213"></a>
<FONT color="green">214</FONT>         * Add a new dynamic property.<a name="line.214"></a>
<FONT color="green">215</FONT>         *<a name="line.215"></a>
<FONT color="green">216</FONT>         * @param property Property the new dynamic property to add.<a name="line.216"></a>
<FONT color="green">217</FONT>         *<a name="line.217"></a>
<FONT color="green">218</FONT>         * @exception IllegalArgumentException if name is null<a name="line.218"></a>
<FONT color="green">219</FONT>         * @exception IllegalStateException if this DynaClass is currently<a name="line.219"></a>
<FONT color="green">220</FONT>         *  restricted, so no new properties can be added<a name="line.220"></a>
<FONT color="green">221</FONT>         */<a name="line.221"></a>
<FONT color="green">222</FONT>        protected void add(DynaProperty property) {<a name="line.222"></a>
<FONT color="green">223</FONT>    <a name="line.223"></a>
<FONT color="green">224</FONT>            if (property.getName() == null) {<a name="line.224"></a>
<FONT color="green">225</FONT>                throw new IllegalArgumentException("Property name is missing.");<a name="line.225"></a>
<FONT color="green">226</FONT>            }<a name="line.226"></a>
<FONT color="green">227</FONT>    <a name="line.227"></a>
<FONT color="green">228</FONT>            if (isRestricted()) {<a name="line.228"></a>
<FONT color="green">229</FONT>                throw new IllegalStateException("DynaClass is currently restricted. No new properties can be added.");<a name="line.229"></a>
<FONT color="green">230</FONT>            }<a name="line.230"></a>
<FONT color="green">231</FONT>    <a name="line.231"></a>
<FONT color="green">232</FONT>            // Check if property already exists<a name="line.232"></a>
<FONT color="green">233</FONT>            if (propertiesMap.get(property.getName()) != null) {<a name="line.233"></a>
<FONT color="green">234</FONT>               return;<a name="line.234"></a>
<FONT color="green">235</FONT>            }<a name="line.235"></a>
<FONT color="green">236</FONT>    <a name="line.236"></a>
<FONT color="green">237</FONT>            // Create a new property array with the specified property<a name="line.237"></a>
<FONT color="green">238</FONT>            DynaProperty[] oldProperties = getDynaProperties();<a name="line.238"></a>
<FONT color="green">239</FONT>            DynaProperty[] newProperties = new DynaProperty[oldProperties.length+1];<a name="line.239"></a>
<FONT color="green">240</FONT>            System.arraycopy(oldProperties, 0, newProperties, 0, oldProperties.length);<a name="line.240"></a>
<FONT color="green">241</FONT>            newProperties[oldProperties.length] = property;<a name="line.241"></a>
<FONT color="green">242</FONT>    <a name="line.242"></a>
<FONT color="green">243</FONT>           // Update the properties<a name="line.243"></a>
<FONT color="green">244</FONT>           setProperties(newProperties);<a name="line.244"></a>
<FONT color="green">245</FONT>    <a name="line.245"></a>
<FONT color="green">246</FONT>        }<a name="line.246"></a>
<FONT color="green">247</FONT>    <a name="line.247"></a>
<FONT color="green">248</FONT>        /**<a name="line.248"></a>
<FONT color="green">249</FONT>         * Remove the specified dynamic property, and any associated data type,<a name="line.249"></a>
<FONT color="green">250</FONT>         * readability, and writeability, from this dynamic class.<a name="line.250"></a>
<FONT color="green">251</FONT>         * &lt;strong&gt;NOTE&lt;/strong&gt; - This does &lt;strong&gt;NOT&lt;/strong&gt; cause any<a name="line.251"></a>
<FONT color="green">252</FONT>         * corresponding property values to be removed from DynaBean instances<a name="line.252"></a>
<FONT color="green">253</FONT>         * associated with this DynaClass.<a name="line.253"></a>
<FONT color="green">254</FONT>         *<a name="line.254"></a>
<FONT color="green">255</FONT>         * @param name Name of the dynamic property to remove<a name="line.255"></a>
<FONT color="green">256</FONT>         *<a name="line.256"></a>
<FONT color="green">257</FONT>         * @exception IllegalArgumentException if name is null<a name="line.257"></a>
<FONT color="green">258</FONT>         * @exception IllegalStateException if this DynaClass is currently<a name="line.258"></a>
<FONT color="green">259</FONT>         *  restricted, so no properties can be removed<a name="line.259"></a>
<FONT color="green">260</FONT>         */<a name="line.260"></a>
<FONT color="green">261</FONT>        public void remove(String name) {<a name="line.261"></a>
<FONT color="green">262</FONT>    <a name="line.262"></a>
<FONT color="green">263</FONT>            if (name == null) {<a name="line.263"></a>
<FONT color="green">264</FONT>                throw new IllegalArgumentException("Property name is missing.");<a name="line.264"></a>
<FONT color="green">265</FONT>            }<a name="line.265"></a>
<FONT color="green">266</FONT>    <a name="line.266"></a>
<FONT color="green">267</FONT>            if (isRestricted()) {<a name="line.267"></a>
<FONT color="green">268</FONT>                throw new IllegalStateException("DynaClass is currently restricted. No properties can be removed.");<a name="line.268"></a>
<FONT color="green">269</FONT>            }<a name="line.269"></a>
<FONT color="green">270</FONT>    <a name="line.270"></a>
<FONT color="green">271</FONT>            // Ignore if property doesn't exist<a name="line.271"></a>
<FONT color="green">272</FONT>            if (propertiesMap.get(name) == null) {<a name="line.272"></a>
<FONT color="green">273</FONT>                return;<a name="line.273"></a>
<FONT color="green">274</FONT>            }<a name="line.274"></a>
<FONT color="green">275</FONT>    <a name="line.275"></a>
<FONT color="green">276</FONT>    <a name="line.276"></a>
<FONT color="green">277</FONT>            // Create a new property array of without the specified property<a name="line.277"></a>
<FONT color="green">278</FONT>            DynaProperty[] oldProperties = getDynaProperties();<a name="line.278"></a>
<FONT color="green">279</FONT>            DynaProperty[] newProperties = new DynaProperty[oldProperties.length-1];<a name="line.279"></a>
<FONT color="green">280</FONT>            int j = 0;<a name="line.280"></a>
<FONT color="green">281</FONT>            for (int i = 0; i &lt; oldProperties.length; i++) {<a name="line.281"></a>
<FONT color="green">282</FONT>                if (!(name.equals(oldProperties[i].getName()))) {<a name="line.282"></a>
<FONT color="green">283</FONT>                    newProperties[j] = oldProperties[i];<a name="line.283"></a>
<FONT color="green">284</FONT>                    j++;<a name="line.284"></a>
<FONT color="green">285</FONT>                }<a name="line.285"></a>
<FONT color="green">286</FONT>            }<a name="line.286"></a>
<FONT color="green">287</FONT>    <a name="line.287"></a>
<FONT color="green">288</FONT>            // Update the properties<a name="line.288"></a>
<FONT color="green">289</FONT>            setProperties(newProperties);<a name="line.289"></a>
<FONT color="green">290</FONT>    <a name="line.290"></a>
<FONT color="green">291</FONT>        }<a name="line.291"></a>
<FONT color="green">292</FONT>    <a name="line.292"></a>
<FONT color="green">293</FONT>        /**<a name="line.293"></a>
<FONT color="green">294</FONT>         * &lt;p&gt;Return a property descriptor for the specified property.&lt;/p&gt;<a name="line.294"></a>
<FONT color="green">295</FONT>         *<a name="line.295"></a>
<FONT color="green">296</FONT>         * &lt;p&gt;If the property is not found and the &lt;code&gt;returnNull&lt;/code&gt; indicator is<a name="line.296"></a>
<FONT color="green">297</FONT>         *    &lt;code&gt;true&lt;/code&gt;, this method always returns &lt;code&gt;null&lt;/code&gt;.&lt;/p&gt;<a name="line.297"></a>
<FONT color="green">298</FONT>         *<a name="line.298"></a>
<FONT color="green">299</FONT>         * &lt;p&gt;If the property is not found and the &lt;code&gt;returnNull&lt;/code&gt; indicator is<a name="line.299"></a>
<FONT color="green">300</FONT>         *    &lt;code&gt;false&lt;/code&gt; a new property descriptor is created and returned (although<a name="line.300"></a>
<FONT color="green">301</FONT>         *    its not actually added to the DynaClass's properties). This is the default<a name="line.301"></a>
<FONT color="green">302</FONT>         *    beahviour.&lt;/p&gt;<a name="line.302"></a>
<FONT color="green">303</FONT>         *<a name="line.303"></a>
<FONT color="green">304</FONT>         * &lt;p&gt;The reason for not returning a &lt;code&gt;null&lt;/code&gt; property descriptor is that<a name="line.304"></a>
<FONT color="green">305</FONT>         *    &lt;code&gt;BeanUtils&lt;/code&gt; uses this method to check if a property exists<a name="line.305"></a>
<FONT color="green">306</FONT>         *    before trying to set it - since these &lt;i&gt;Lazy&lt;/i&gt; implementations automatically<a name="line.306"></a>
<FONT color="green">307</FONT>         *    add any new properties when they are set, returning &lt;code&gt;null&lt;/code&gt; from<a name="line.307"></a>
<FONT color="green">308</FONT>         *    this method would defeat their purpose.&lt;/p&gt;<a name="line.308"></a>
<FONT color="green">309</FONT>         *<a name="line.309"></a>
<FONT color="green">310</FONT>         * @param name Name of the dynamic property for which a descriptor<a name="line.310"></a>
<FONT color="green">311</FONT>         *  is requested<a name="line.311"></a>
<FONT color="green">312</FONT>         * @return The dyna property for the specified name<a name="line.312"></a>
<FONT color="green">313</FONT>         *<a name="line.313"></a>
<FONT color="green">314</FONT>         * @exception IllegalArgumentException if no property name is specified<a name="line.314"></a>
<FONT color="green">315</FONT>         */<a name="line.315"></a>
<FONT color="green">316</FONT>        public DynaProperty getDynaProperty(String name) {<a name="line.316"></a>
<FONT color="green">317</FONT>    <a name="line.317"></a>
<FONT color="green">318</FONT>            if (name == null) {<a name="line.318"></a>
<FONT color="green">319</FONT>                throw new IllegalArgumentException("Property name is missing.");<a name="line.319"></a>
<FONT color="green">320</FONT>            }<a name="line.320"></a>
<FONT color="green">321</FONT>    <a name="line.321"></a>
<FONT color="green">322</FONT>            DynaProperty dynaProperty = (DynaProperty)propertiesMap.get(name);<a name="line.322"></a>
<FONT color="green">323</FONT>    <a name="line.323"></a>
<FONT color="green">324</FONT>            // If it doesn't exist and returnNull is false<a name="line.324"></a>
<FONT color="green">325</FONT>            // create a new DynaProperty<a name="line.325"></a>
<FONT color="green">326</FONT>            if (dynaProperty == null &amp;&amp; !isReturnNull() &amp;&amp; !isRestricted()) {<a name="line.326"></a>
<FONT color="green">327</FONT>                dynaProperty = new DynaProperty(name);<a name="line.327"></a>
<FONT color="green">328</FONT>            }<a name="line.328"></a>
<FONT color="green">329</FONT>    <a name="line.329"></a>
<FONT color="green">330</FONT>            return dynaProperty;<a name="line.330"></a>
<FONT color="green">331</FONT>    <a name="line.331"></a>
<FONT color="green">332</FONT>        }<a name="line.332"></a>
<FONT color="green">333</FONT>    <a name="line.333"></a>
<FONT color="green">334</FONT>        /**<a name="line.334"></a>
<FONT color="green">335</FONT>         * &lt;p&gt;Indicate whether a property actually exists.&lt;/p&gt;<a name="line.335"></a>
<FONT color="green">336</FONT>         *<a name="line.336"></a>
<FONT color="green">337</FONT>         * &lt;p&gt;&lt;strong&gt;N.B.&lt;/strong&gt; Using &lt;code&gt;getDynaProperty(name) == null&lt;/code&gt;<a name="line.337"></a>
<FONT color="green">338</FONT>         * doesn't work in this implementation because that method might<a name="line.338"></a>
<FONT color="green">339</FONT>         * return a DynaProperty if it doesn't exist (depending on the<a name="line.339"></a>
<FONT color="green">340</FONT>         * &lt;code&gt;returnNull&lt;/code&gt; indicator).&lt;/p&gt;<a name="line.340"></a>
<FONT color="green">341</FONT>         *<a name="line.341"></a>
<FONT color="green">342</FONT>         * @param name The name of the property to check<a name="line.342"></a>
<FONT color="green">343</FONT>         * @return &lt;code&gt;true&lt;code&gt; if there is a property of the<a name="line.343"></a>
<FONT color="green">344</FONT>         * specified name, otherwise &lt;code&gt;false&lt;/code&gt;<a name="line.344"></a>
<FONT color="green">345</FONT>         * @exception IllegalArgumentException if no property name is specified<a name="line.345"></a>
<FONT color="green">346</FONT>         */<a name="line.346"></a>
<FONT color="green">347</FONT>        public boolean isDynaProperty(String name) {<a name="line.347"></a>
<FONT color="green">348</FONT>    <a name="line.348"></a>
<FONT color="green">349</FONT>            if (name == null) {<a name="line.349"></a>
<FONT color="green">350</FONT>                throw new IllegalArgumentException("Property name is missing.");<a name="line.350"></a>
<FONT color="green">351</FONT>            }<a name="line.351"></a>
<FONT color="green">352</FONT>    <a name="line.352"></a>
<FONT color="green">353</FONT>            return propertiesMap.get(name) ==  null ? false : true;<a name="line.353"></a>
<FONT color="green">354</FONT>    <a name="line.354"></a>
<FONT color="green">355</FONT>        }<a name="line.355"></a>
<FONT color="green">356</FONT>    <a name="line.356"></a>
<FONT color="green">357</FONT>    }<a name="line.357"></a>




























































</PRE>
</BODY>
</HTML>
